<template>
  <div class="component-container">
    <!-- 搜索表单 -->
    <el-form ref="queryFormRef" :model="queryParams" :inline="true">
      <el-form-item>
        <el-button type="success" :icon="Plus" @click="handleAdd"
          >新增</el-button
        >
      </el-form-item>

      <el-form-item prop="name">
        <el-input
          v-model="queryParams.name"
          placeholder="菜单名称"
          clearable
          @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" :icon="Search" @click="handleQuery"
          >搜索</el-button
        >
        <el-button :icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <!-- 数据表格 -->
    <el-table
      v-loading="loading"
      :data="menuList"
      highlight-current-row
      :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
      @row-click="handleRowClick"
      row-key="id"
      border
    >
      <el-table-column label="菜单名称">
        <template #default="scope">
          <svg-icon
            color="#333"
            :icon-class="scope.row.icon ? scope.row.icon : 'build'"
          />
          {{ scope.row.name }}
        </template>
      </el-table-column>

      <el-table-column label="菜单类型" align="center" width="100">
        <template #default="scope">
			<el-tag v-if="!scope.row.path&&!scope.row.redirect" type="warning"
			  >目录</el-tag
			>
          <el-tag v-else-if="scope.row.path&&scope.row.path!=''" type="success">菜单</el-tag>
          <el-tag v-else type="info">外链</el-tag>
        </template>
      </el-table-column>

      <el-table-column label="状态" align="center" width="80">
        <template #default="scope">
          <el-tag v-if="scope.row.visible === 1" type="success">显示</el-tag>
          <el-tag v-else type="info">隐藏</el-tag>
        </template>
      </el-table-column>

      <el-table-column label="排序" align="center" width="60" prop="sort">
      </el-table-column>

      <el-table-column label="操作" align="center" width="160">
        <template #default="scope">
          <el-button
            type="success"
            link
            @click.stop="handleAdd(scope.row)"
          >新增</el-button>
          <el-button
            type="primary"
            link
            @click.stop="handleUpdate(scope.row)"
          >修改</el-button>
          <el-button
            type="danger"
            link
            @click.stop="handleDelete(scope.row)"
            >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 弹窗表单 -->
    <el-dialog
      :title="dialog.title"
      v-model="dialog.visible"
      @close="cancel"
      width="750px"
    >
      <el-form
        ref="dataFormRef"
        :model="formData"
        :rules="rules"
        label-width="100px"
      >
        <el-form-item label="父级菜单" prop="parentId">
          <el-tree-select
            v-model="formData.parentId"
            placeholder="选择上级菜单"
            :data="menuOptions"
            filterable
            check-strictly
          />
        </el-form-item>

        <el-form-item label="菜单名称" prop="name">
          <el-input v-model="formData.name" placeholder="请输入菜单名称" />
        </el-form-item>

        <el-form-item label="菜单类型">
          <el-radio-group
            v-model="formData.type"
            @change="handleMenuTypeChange"
          >
            <el-radio label="MENU">菜单</el-radio>
            <el-radio label="CATALOG">目录</el-radio>
            <el-radio label="EXTLINK">外链</el-radio>
          </el-radio-group>
        </el-form-item>

        <!-- 路由路径(浏览器地址栏显示) -->
        <el-form-item
          v-if="formData.type == 'EXTLINK'"
          label="外链地址"
          prop="path"
        >
          <el-input v-model="formData.path" placeholder="请输入外链完整路径" />
        </el-form-item>

        <el-form-item v-else label="路由路径" prop="path">
          <el-input
            v-if="formData.type == 'CATALOG'"
            v-model="formData.path"
            placeholder="/system  (注意:目录以/开头)"
          />
          <el-input v-else v-model="formData.path" placeholder="user" />
        </el-form-item>

        <!-- 组件页面完整路径 -->
        <el-form-item
          v-if="formData.type == 'MENU'"
          label="组件路径"
          prop="component"
        >
          <el-input
            v-model="formData.component"
            placeholder="system/user/index"
            style="width: 95%"
          >
            <template v-if="formData.parentId != '0'" #prepend
              >src/views/</template
            >
            <template v-if="formData.parentId != '0'" #append>.vue</template>
          </el-input>
        </el-form-item>

        <el-form-item label="图标" prop="icon">
          <el-popover
            ref="popoverRef"
            placement="bottom-start"
            :width="570"
            trigger="click"
          >
            <template #reference>
              <el-input
                v-model="formData.icon"
                placeholder="点击选择图标"
                readonly
                @click="iconSelectVisible = true"
              >
                <template #prefix>
                  <svg-icon :icon-class="formData.icon" />
                </template>
              </el-input>
            </template>

            <icon-select @selected="selected" />
          </el-popover>
        </el-form-item>

        <el-form-item label="跳转路由">
          <el-input
            v-model="formData.redirect"
            placeholder="跳转路由路径"
            maxlength="50"
          />
        </el-form-item>

        <el-form-item label="状态">
          <el-radio-group v-model="formData.visible">
            <el-radio :label="1">显示</el-radio>
            <el-radio :label="0">隐藏</el-radio>
          </el-radio-group>
        </el-form-item>

        <el-form-item label="排序" prop="sort">
          <el-input-number
            v-model="formData.sort"
            style="width: 100px"
            controls-position="right"
            :min="0"
          />
        </el-form-item>
      </el-form>

      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script>
	
import { reactive, ref, onMounted, toRefs } from 'vue';
import { Search, Plus, Edit, Refresh, Delete } from '@element-plus/icons-vue';
import { ElForm, ElMessage, ElMessageBox, ElPopover } from 'element-plus';

import {
  MenuFormData,
  MenuQueryParam,
} from '@/api/sys/admin/menu';
// API 依赖
import {
  listMenus,
  getMenuDetail,
  listMenuOptions,
  addMenu,
  deleteMenus,
  updateMenu,
} from '@/api/sys/admin/menu';
 
 export default {
   name: 'menu',
   emits:["menuClick"],
   components:{ Search, Plus, Edit, Refresh, Delete},
   setup(props,context){
	   const queryFormRef = ref(ElForm);
	   const dataFormRef = ref(ElForm);
	   const popoverRef = ref(ElPopover);
	   const state = reactive({
	     loading: true,
	     // 选中ID数组
	     ids: [],
	     // 非单个禁用
	     single: true,
	     // 非多个禁用
	     multiple: true,
	     queryParams: {} ,
	     menuList: [],
	     dialog: { visible: false } ,
	     formData: {
	       parentId: '0',
	       name: '',
	       visible: 1,
	       sort: 1,
	       component: undefined,
	       type: 'MENU',
	     } ,
	     rules: {
	       parentId: [{ required: true, message: '请选择顶级菜单', trigger: 'blur' }],
	       name: [{ required: true, message: '请输入菜单名称', trigger: 'blur' }],
	       type: [{ required: true, message: '请选择菜单类型', trigger: 'blur' }],
	       path: [{ required: true, message: '请输入路由路径', trigger: 'blur' }],
	       component: [
	         { required: true, message: '请输入组件完整路径', trigger: 'blur' },
	       ],
	     },
	     menuOptions: [] ,
	     currentRow: undefined,
	     // Icon选择器显示状态
	     iconSelectVisible: false,
	     cacheData: {
	       menuType: '',
	       menuPath: '',
	     },
	   });
	   
	   const {
	     loading,
	     queryParams,
	     menuList,
	     dialog,
	     formData,
	     rules,
	     menuOptions,
	     iconSelectVisible,
	     cacheData,
	   } = toRefs(state);
	   
	   /**
	    * 查询
	    */
	   function handleQuery() {
	     // 重置父组件
	     context.emit('menuClick', null);
	     state.loading = true;
	     listMenus(state.queryParams).then(({ data }) => {
	       state.menuList = data;
	       state.loading = false;
	     });
	   }
	   
	   /**
	    * 加载菜单下拉树
	    */
	   async function loadMenuData() {
	     const menuOptions  = [];
	     await listMenuOptions().then(({ data }) => {
	       const menuOption = { value: '0', label: '顶级菜单', children: data };
	       menuOptions.push(menuOption);
	       state.menuOptions = menuOptions;
	     });
	   }
	   
	   /**
	    * 重置查询
	    */
	   function resetQuery() {
	     queryFormRef.value.resetFields();
	     handleQuery();
	   }
	   
	   function handleRowClick(row) {
	     state.currentRow = JSON.parse(JSON.stringify(row));
	     context.emit('menuClick', row);
	   }
	   
	   /**
	    * 新增菜单
	    * @param row
	    */
	   async function handleAdd(row) {
	     formData.value.id = undefined;
	     await loadMenuData();
	     state.dialog = {
	       title: '添加菜单',
	       visible: true,
	     };
	     if (row.id) {
	       // 行点击新增
	       state.formData.parentId = row.id;
	       if (row.id == '0') {
	         state.formData.type = 'CATALOG';
	       } else {
	         state.formData.type = 'MENU';
	       }
	     } else {
	       // 工具栏新增
	       if (state.currentRow) {
	         state.formData.parentId = (state.currentRow ).id;
	         state.formData.type = 'MENU';
	       } else {
	         state.formData.parentId = '0';
	         state.formData.type = 'CATALOG';
	       }
	     }
	   }
	   
	   /**
	    * 编辑菜单
	    */
	   async function handleUpdate(row) {
	     await loadMenuData();
	     state.dialog = {
	       title: '编辑菜单',
	       visible: true,
	     };
	     const id = row.id ;
	     getMenuDetail(id).then(({ data }) => {
	       state.formData = data;
	       cacheData.value.menuType = data.type;
	       cacheData.value.menuPath = data.path;
	     });
	   }
	   
	   /**
	    * 菜单类型 change
	    */
	   function handleMenuTypeChange(menuType) {
	     if (menuType !== cacheData.value.menuType) {
	       formData.value.path = '';
	     } else {
	       formData.value.path = cacheData.value.menuPath;
	     }
	   }
	   
	   /**
	    * 菜单提交
	    */
	   function submitForm() {
	     dataFormRef.value.validate((isValid) => {
	       if (isValid) {
	         if (state.formData.id) {
	           updateMenu(state.formData.id, state.formData).then(() => {
	             ElMessage.success('修改成功');
	             cancel();
	             handleQuery();
	           });
	         } else {
	           addMenu(state.formData).then(() => {
	             ElMessage.success('新增成功');
	             cancel();
	             handleQuery();
	           });
	         }
	       }
	     });
	   }
	   
	   /**
	    * 删除菜单
	    *
	    * @param row
	    */
	   function handleDelete(row) {
	     const ids = [row.id || state.ids].join(',');
	     ElMessageBox.confirm('确认删除已选中的数据项?', '警告', {
	       confirmButtonText: '确定',
	       cancelButtonText: '取消',
	       type: 'warning',
	     })
	       .then(() => {
	         deleteMenus(ids).then(() => {
	           ElMessage.success('删除成功');
	           handleQuery();
	         });
	       })
	       .catch(() => ElMessage.info('已取消删除'));
	   }
	   
	   /**
	    * 取消关闭弹窗
	    */
	   function cancel() {
	     dataFormRef.value.resetFields();
	     state.dialog.visible = false;
	   }
	   
	   /**
	    * 选择图标后事件
	    */
	   function selected(name) {
	     state.formData.icon = name;
	     state.iconSelectVisible = false;
	   }
	   
	   onMounted(() => {
	     handleQuery();
	   });
	   return {selected,cancel,handleDelete,submitForm,
	           handleUpdate,handleAdd,loadMenuData,handleQuery,
			   resetQuery,handleMenuTypeChange,handleRowClick,
			   //function
		      loading,state,
		      queryParams,menuList,
		      dialog,formData,
		      rules,menuOptions,
		      iconSelectVisible, cacheData,//modal
			  queryFormRef,dataFormRef,popoverRef,
			  //ref
	   }
   }
 };
</script>
